# list1 = [1,2,3]
# print(list1)
# list1 = []
# print(list1)

# func1 = lambda x:x+1
# a = func1(2)
# print(a)

# func = map(lambda x:x**2,[1,2,3,4])
# print(list(func))


str = '*'.join({"a","b","c"})
print(str)


